pgrouting/sql/spanningTree/prim.sql at develop · withaman69/pgrouting · GitHub

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/*PGR-GNU*****************************************************************

File: prim.sql

Generated with Template by:

Mail: project@pgrouting.org

Function's developer:

Mail: adityapratap.singh28@gmail.com

------

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

********************************************************************PGR-GNU*/

------------

-- pgr_prim

------------

--v3.0

CREATE FUNCTION pgr_prim(

TEXT, -- edges_sql (required)

OUT edge BIGINT,

OUT cost FLOAT)

RETURNS SETOF RECORD AS

$BODY$

SELECT edge, cost

FROM _pgr_primv4(_pgr_get_statement($1), ARRAY[0]::BIGINT[], '', -1, -1);

$BODY$

LANGUAGE SQL VOLATILE STRICT

COST ${COST_HIGH} ROWS ${ROWS_HIGH};

-- COMMENT

COMMENT ON FUNCTION pgr_prim(TEXT)

IS 'pgr_prim

- Undirected graph

- Parameters:

- Edges SQL with columns: id, source, target, cost [,reverse_cost]

- Documentation:

- ${PROJECT_DOC_LINK}/pgr_prim.html

pgrouting/sql/spanningTree/prim.sql at develop · withaman69/pgrouting · GitHub

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